Low temperature magnetic and magnetocaloric studies in YCr0.85Mn0.15O3 ceramic
authors Panwar, N; Kumar, S; Coondoo, I; Vasundhara, M; Kumar, N
nationality International
journal PHYSICA B-CONDENSED MATTER
author keywords Chromites; Magnetization reversal; Magnetocaloric effect
keywords EXCHANGE-BIAS; REVERSAL; PEROVSKITE
abstract We have investigated low temperature magnetic and magnetocaloric properties of manganese (Mn) doped YCr0.85Mn0.15O3 (YCMO) polycrystalline compound, synthesized via solid state reaction route. The lattice volume was found to increase in comparison to that of pristine YCrO3 (YCO) compound. On the other hand, the paramagnetic-antiferromagnetic Neel temperature (T-N similar to 132 K) was found to be lower than that for YCO ceramic. On cooling below T-N, under field cooled (FC) mode with an applied magnetic field of 0.02 T, magnetization flipped the polarity from positive to negative at T-comp = 62 K. Furthermore, the magnetization switching temperature, defined as compensation temperature, exhibited field dependency and decreased with increasing field. Besides, the magnetization reversal phenomenon disappeared under higher applied magnetic field values. For the first time, the magnetocaloric effect for this compound was measured near 36 K through the parameters like magnetic entropy change (-Delta S) = similar to 0.186 J kg(-1) K-1 and the relative cooling power (RCP) similar to 6.65 J kg(-1), under an applied field of 5 T.
publisher ELSEVIER SCIENCE BV
issn 0921-4526
year published 2018
volume 545
beginning page 352
ending page 357
digital object identifier (doi) 10.1016/j.physb.2018.06.038
web of science category Physics, Condensed Matter
subject category Physics
unique article identifier WOS:000449621100055
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